What is a cast operator

In Java, the forced type conversion operator refers to the operator that converts one data type to another data type. It consists of brackets plus the target data type. The specific format is as follows "(targetType) expression", where, targetType represents the target data type, and expression represents the expression to be converted.

# Operating system for this tutorial: Windows 10 system, Dell G3 computer.

In Java, a cast operator refers to an operator that converts one data type to another. This type of conversion is also called a cast or explicit conversion. In Java, using cast operators to perform type conversions is a common operation.

The forced type conversion character consists of parentheses plus the target data type. The specific format is as follows:

(targetType) expression

Among them, targetType represents the target data type, and expression represents the expression to be converted.

For example:

double d = 10.5;
int i = (int) d; // 强制类型转换，将 double 类型转换为 int 类型

In the above example, (int) is the forced type conversion operator, which converts the value of d to int type, and Assign the result to the i variable. It should be noted that when performing forced type conversion, precision may be lost or overflow may occur, so it needs to be used with caution to ensure the safety and correctness of the conversion.

In short, cast operator is an operator used to perform data type conversion in Java, which can help developers convert one data type to another data type when needed.

The above is the detailed content of What is a cast operator. For more information, please follow other related articles on the PHP Chinese website!